What is CVE-2023-50310?

CVE-2023-50310 is a medium-severity vulnerability in IBM Cics Transaction Gateway, classified under Insufficiently Protected Credentials. CVSS score: 4.9/10. Published 2024-10-23.

How severe is CVE-2023-50310?

Medium severity. CVSS v3 base score is 4.9 out of 10.

Vulnerability in IBM Cics Transaction Gateway

CVE-2023-50310

IBM CICS Transaction Gateway for Multiplatforms 9.2 and 9.3 transmits or stores authentication credentials, but it uses an insecure method that is susceptible to unauthorized interception and/or retrieval.

Published 2024-10-23 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.004 (31.2th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 31st percentile — 31.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

IBM Cics Transaction Gateway — versions 9.2, 9.3
IBM Cics Transaction Gateway For Multiplatforms — versions 9.2, 9.3

Weakness classification (CWE)

CWE-522 — Insufficiently Protected Credentials

References

www.ibm.com/support/pages/node/7145418 (Vendor Advisory)

Frequently asked questions

What is CVE-2023-50310?: CVE-2023-50310 is a medium-severity vulnerability in IBM Cics Transaction Gateway, classified under Insufficiently Protected Credentials. CVSS score: 4.9/10. Published 2024-10-23.
How severe is CVE-2023-50310?: Medium severity. CVSS v3 base score is 4.9 out of 10.